Season 4
(2018)
Overview
In season four, Supergirl is facing a bigger threat than she's ever faced before – a new wave of anti-alien sentiment, spreading across National City that’s fomented by Agent Liberty. As Kara mentors a new reporter at CatCo, Nia Nal, and tries to use the power of the press to shine a light on the issues threatening to tear the city apart, Supergirl takes to the skies to battle the many villains who rise up in this era of divisiveness.
Cast
as Kara Danvers / Supergirl / Kara Zor-El
as Alex Danvers / Sentinel
as J'onn J'onzz / Martian Manhunter
as Lena Luthor
as Querl 'Brainy' Dox / Brainiac-5
as Nia Nal / Dreamer
as Ben Lockwood / Agent Liberty
as James 'Jimmy' Olsen / Guardian
Episodes
American Alien 6.1
October 14, 2018
Diving back into reporting, Kara welcomes a new cub reporter to CatCo. Meanwhile, James and Lena argue about James’ imp…
Fallout 6.9
October 21, 2018
A shocking revelation causes chaos in National City. Supergirl sets out to capture Mercy Graves, while Alex takes contr…
Man of Steel 6.7
October 28, 2018
Ben Lockwood didn't always hate aliens. Through a series of incidents, and input from his anti-alien father, Ben slowly…
Ahimsa 6.5
November 4, 2018
When Supergirl needs help, Alex asks Lena and Brainiac to team up. Meanwhile, J’onn questions his decision to quit the …
Parasite Lost 6.4
November 11, 2018
Colonel Haley makes a surprising decision regarding Supergirl. Kara writes a series of articles highlighting aliens in …
Call to Action 6.2
November 18, 2018
Everyone gathers for Thanksgiving but Kara is feeling down after her televised debate with Ben Lockwood about the anti-…
Rather the Fallen Angel 6.5
November 25, 2018
James falls in deeper with the Children of Liberty in his efforts to meet Agent Liberty. Meanwhile, Supergirl and Manch…
Bunker Hill 6.5
December 2, 2018
Nia has a powerful dream about Agent Liberty but refuses to look at it as a prophetic dream and pushes it aside. After …
Elseworlds (III) 6.7
December 11, 2018
Supergirl, The Flash, Green Arrow and Superman engage in the battle of their lives. The crossover starts on The Flash …
Suspicious Minds 6.2
January 20, 2019
Colonel Haley is upset after Supergirl responds to a distress call from a Navy ship that turned out to be a deadly alie…
Blood Memory 6.2
January 27, 2019
Kara joins Nia on a trip to Nia's hometown to visit her family during the town's annual Harvest Festival. While home, N…
Menagerie 6.2
February 17, 2019
With his P.I. shingle newly hung outside his office, J'onn welcomes new clients. Trying to take her mind off what happe…
What's So Funny About Truth, Justice, and the American Way? 6.3
March 3, 2019
Manchester Black breaks out of prison with the help of his new team, The Elite, who are set on punishing the anti-alien…
Stand and Deliver 6.1
March 10, 2019
Between Ben Lockwood’s new push to stir up the anti-alien movement and the Elite’s desire to target Lockwood and his mi…
O Brother, Where Art Thou? 6.9
March 17, 2019
Secretly furloughed from prison due to failing health, Lex Luthor visits his sister, Lena, to seek her help finding a c…
The House of L 7.3
March 24, 2019
In the wake of Lex Luthor's return, the show flashes back to what he's been doing for the last two years and how his se…
All About Eve 6.0
March 31, 2019
Supergirl must deal with the destructive aftermath of Lex's nefarious plans. Shocked at what Lex has created, Supergirl…
Crime and Punishment 6.2
April 21, 2019
Kara and Lena head to Stryker's Island to search for clues on how to defeat Lex. At the prison, Kara tries to befriend …
American Dreamer 6.1
April 28, 2019
As Kara doggedly works as a reporter to clear Supergirl's name, Dreamer picks up the slack as National City's protector…
Will The Real Miss Tessmacher Please Stand Up? 5.9
May 5, 2019
Kara and Lena head to Kaznia to hunt down Lex. However, Eve Tessmacher sets a trap for the duo that could ultimately re…
Red Dawn 6.6
May 12, 2019
Kara comes face to face with Red Daughter and the two engage in an epic battle. Determined to find a way to extract the…
The Quest for Peace 6.2
May 19, 2019
Lex Luthor descends upon Washington, DC and summons Lena and Lillian Luthor to the White House. Supergirl realizes she …